I have a freaking fantastic computer, I can play over 200 mods with Skyrim on Ultra. (Mind you, about 15 of those mods are for graphics, and some of them are fairly heavy, and still, no lag) Anyways, I don't know what mod it is, and if someone knows I'd really like to know what it is or if it's just vanilla.
There are these two dog/wolves that I'll run into everyone once and a while when I traveling through Skyrim, their names are Fermi and Kepler, not sure on the second name. They are friendly, Fermi has the Dawnguard attack dog model, but instead of being black and white, he is orange and white with bright green eyes. Kepler has a wolf model, but he is like... a sick green mixed with some brown. They are very interesting as well, I've noticed they do some strange things. When one of them dies, the other 'mourns' the dead one and stays next it while whimpering. (I'm not kidding, if anyone wants proof, I'll post pictures to my steam account.)
So, if anyone knows where they are from, I'd really, really like to know